參數(shù)資料
型號： XRT86VL3X_07
廠商： Exar Corporation
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù)： 144/153頁
文件大小： 1316K
代理商： XRT86VL3X_07
XRT86VL3X
137
T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
REV. 1.2.2
MICROPROCESSOR INTERFACE I/O TIMING
I
NTEL
I
NTERFACE
T
IMING
- A
SYNCHRONOUS
The signals used for the Intel microprocessor interface are: Address Latch Enable (ALE), Read Enable (RD),
Write Enable (WR), Chip Select (CS), Address and Data bits. The microprocessor interface uses minimum
external glue logic and is compatible with the timings of the 8051 or 80188 family of microprocessors. The ALE
signal can be tied ’HIGH’ if this signal is not available, and the corresponding timing interface is shown in
Figure 121
and
Table 26.
T
ABLE
24: AC E
LECTRICAL
C
HARACTERISTICS
VDD
IO
= 3.3V + 5% , VDD
CORE
= 1.8V + 5%, T
A
=25°C,
UNLESS
OTHERWISE
SPECIFIED
P
ARAMETER
S
YMBOL
M
IN
.
T
YP
.
M
AX
.
U
NITS
MCLKIN Clock Duty Cycle
40
-
60
%
MCLKIN Clock Tolerance
-
±50
-
ppm
F
IGURE
120. I
NTEL
μP I
NTERFACE
T
IMING
D
URING
P
ROGRAMMED
I/O R
EAD
AND
W
RITE
O
PERATIONS
W
HEN
ALE
I
S
N
OT
T
IED
’HIGH’
T
ABLE
25: I
NTEL
M
ICROPROCESSOR
I
NTERFACE
T
IMING
S
PECIFICATIONS
S
YMBOL
P
ARAMETER
M
IN
M
AX
U
NITS
t
0
Valid Address to CS Falling Edge and ALE Rising
Edge
0
-
ns
t
1
ALE Falling Edge to RD Assert
5
-
ns
t
2
RD Assert to RDY Assert
-
320
ns
NA
RD Pulse Width (t
2
)
320
-
ns
t
3
ALE Falling Edge to WR Assert
5
-
ns
t
4
WR Assert to RDY Assert
-
320
ns
CS
ADDR14:0]
ALE
DATA[7:0]
RD
WR
RDY
Valid Data for Readback
Data Available to Write Into the LIU
READ OPERATION
WRITE OPERATION
t
0
t
0
t
1
t
4
t
2
t
3
Valid Address
Valid Address
t
5
t
5
相關(guān)PDF資料
PDF描述
XRT86VL3X Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT91L30_0611 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L306 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L30IQ STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L30 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT86VX38 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
XRT86VX38_09 制造商:EXAR 制造商全稱:EXAR 功能描述:8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
XRT86VX38_0906 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
XRT86VX38IB256 制造商:EXAR 制造商全稱:EXAR 功能描述:8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
XRT86VX38IB256ES 功能描述:界面開發(fā)工具 Evaluation Board for XRT86VX38 256pin ICs RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*